Control.OnResize(EventArgs) 方法

定義

引發 Resize 事件。Raises the Resize event.

protected:
 virtual void OnResize(EventArgs ^ e);
protected virtual void OnResize (EventArgs e);
abstract member OnResize : EventArgs -> unit
override this.OnResize : EventArgs -> unit
Protected Overridable Sub OnResize (e As EventArgs)

參數

e
EventArgs

包含事件資料的 EventArgsAn EventArgs that contains the event data.

備註

引發事件會透過委派叫用此事件處理常式。Raising an event invokes the event handler through a delegate. 如需詳細資訊,請參閱處理和引發事件For more information, see Handling and Raising Events.

OnResize 方法也可讓衍生類別處理事件,而不需要附加委派。The OnResize method also enables derived classes to handle the event without attaching a delegate. 這是在衍生類別中處理事件的慣用技巧。This is the preferred technique for handling the event in a derived class.

給繼承者的注意事項

當在衍生類別中覆寫 OnResize(EventArgs) 時,請確定呼叫基底類別的 OnResize(EventArgs) 方法,使已註冊的委派能接收到事件。When overriding OnResize(EventArgs) in a derived class, be sure to call the base class's OnResize(EventArgs) method so that registered delegates receive the event. 在結構中可以呼叫 OnResize(EventArgs) 方法,因此,如果您覆寫 OnResize(EventArgs),就可以在呼叫控制項的函式之前呼叫它。The OnResize(EventArgs) method can be called during construction, so if you override OnResize(EventArgs) it can be called before the control constructor is called.

適用於

另請參閱